Battlefields like Tantive V or Polis Massa are harder for me, because a single hit from a grenade or rocket lancher can wipe out loads of people at once. (Especially when the AI on my own team blow themselves and me up ).

Vader is a really good character for Tantive V, however, because his slow walking speed doesn't matter as much, allowing him to do major damage.

Big battlefields are awesome, especially those with high platforms or hiding spots for sniping.